DESCRIPTIONS OF TRIBES AND GENERA. 



81 



Sec. I. Pennisetum (Eriochceta Figari & De Notar. as a 

 genus). Bristles numer- 

 ous, all, or only the 

 middle ones, bearded. 

 P. villosum Brown, from 

 Abyssinia, with broad 

 spikes, is a favorite or- 

 namental grass under 

 the false name of P. 

 longistylum (which be- 

 longs to Section III). 



Sec. II. Penicillaria 

 Willd. (as a genus). Dis- 

 tinguished from the pre- 

 ceding section only by 

 the artificial character 

 (probably due to cultiva- 

 tion) • of the permanent 

 involucre. P. typlioi- 

 deum Rich. (Penicill. spi- 

 cata Willd.) " Pearl Mil- 

 let" (Fig. 32), the original 

 form and native country 

 of which are unknown, 

 has a culm 1-2 m. high, 

 and fruiting panicles 8-20 

 cm. long, 2-4 cm. thick, 

 and bearded. This is an 

 important agricultural 

 grass in Central Africa. 

 The fruit is used for 

 Mush (" Kuskus"). It is 

 also grown in Arabia Fe- 

 lix and the East Indies. 

 [Cultivated in the South- 

 ern United States for 

 fodder.] 



Sec. III. Gymnothrix 



BeailV.( Oxyanthe Steild.). Fle - W.-Pennisetum typhoideum Rich. 



All involucral bristles naked. P. latifolium Spr. ( Gym- 



